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SqliteBitmapTileCache

Namespace: ThinkGeo.UI.Android

This class represents the base sqlite bitmap tile cache.

public class SqliteBitmapTileCache : ThinkGeo.Core.RasterTileCache

Inheritance Object → TileCache → RasterTileCache → SqliteBitmapTileCache

Properties

DatabasePathFilename

Gets or sets the database path filename.

public string DatabasePathFilename { get; set; }

Property Value

String

        The database path filename.

CacheId

Gets or sets the id of the TileCache.

public string CacheId { get; set; }

Property Value

String

NoDataTileImage

public GeoImage NoDataTileImage { get; }

Property Value

GeoImage

LoadingTileImage

public GeoImage LoadingTileImage { get; }

Property Value

GeoImage

ImageFormat

public RasterTileFormat ImageFormat { get; set; }

Property Value

RasterTileFormat

JpegQuality

public short JpegQuality { get; set; }

Property Value

Int16

TileAccessMode

public TileAccessMode TileAccessMode { get; set; }

Property Value

TileAccessMode

ExpirationTime

public TimeSpan ExpirationTime { get; set; }

Property Value

TimeSpan

Constructors

SqliteBitmapTileCache()

Initializes a new instance of the SqliteBitmapTileCache class.

public SqliteBitmapTileCache()

SqliteBitmapTileCache(String, String)

Initializes a new instance of the SqliteBitmapTileCache class.

public SqliteBitmapTileCache(string databasePathFilename, string cacheId)

Parameters

databasePathFilename String
The database path filename.

cacheId String
The cache identifier.

Methods

GetTileCore(Int32, Int64, Int64)

This abstract method returns the BitmapTile corresponding to passed in row and column. Each concrete TileCache need to implement this logic to get tile from a row and column.

protected Tile GetTileCore(int zoom, long row, long column)

Parameters

zoom Int32

row Int64
The target row for the tile to fetch.

column Int64
The target column for the tile to fetch.

Returns

Tile

        Returns the BitmapTile corresponding to the passed in row and column.

ClearCacheCore()

This abstract method will clear all the tiles in the tileCache, for each sub TileCache class must implement this method.

protected void ClearCacheCore()

Remarks:

This method will not take effect when the ReadOnly is set to true.

SaveTileCore(Tile)

This abstract method will save the target tile passed in, for each sub TileCache class must implement this method.

protected void SaveTileCore(Tile tile)

Parameters

tile Tile
The target tile to be saved.

Remarks:

This method will not take effect when the ReadOnly is set to true.

DeleteTileCore(Tile)

This abstract method will delete the target tile passed in, for each sub TileCache class must implement this method.

protected void DeleteTileCore(Tile tile)

Parameters

tile Tile
The target tile to be deleted.

Remarks:

This method will not take effect when the ReadOnly is set to true.

Events

GottenCacheTile

public event EventHandler<GottenCacheImageBitmapTileCacheEventArgs> GottenCacheTile;

GettingCacheTile

public event EventHandler<GettingCacheImageBitmapTileCacheEventArgs> GettingCacheTile;

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